Repair element for worn plowshares



Aug. 18, 1936. w s 2,051,234

REPAIR ELEMENT FOR WORN PLOWSHARES Filed April 26, 1935 Patented Aug. is, 1936 UNITED STATES PATENT OFFICE REPAIR ELEMENT FOR WORN 80laims.

This invention relates to an improved repair element adapted to be used in connection with the resharpening and repairing of the nose portion, or point, of a plow share.

5 The object of my invention is to provide improved means of simple, durable and inexpensive construction. for renewing the worn out nose of a plow share, which is particularly adapted to be applied to said plow share by the elecl tric arc welding process now in common use in a large number of repair shops.

A further object of my invention is to provide a renewable repair element for plow shares having a'tapered or sharpened nose, so shaped l6 and formed as to substantially fit the worn nose when placed in position thereon, to thereby eliminate a large amount of preparation to the worn out plow share before application of the repair element, as has heretofore been necesgo sary.

More specifically, it is the object of my invention to provide a repair element for plow shares having its sharpened or tapered front end provided with transversely arranged inserts of very I hard abrasive resisting alloys, and so arranged that the front end of said element will always remain in a beveled and sharpened condition as the element is worn away by use, whereby the proper amount of suction will always be main 30 tained during the lifeof the repair element. My

invention consists in the construction, arrangement and combination of the various parts of the device, whereby. the objects contemplated are attained, as hereinafter more fully set forth,

35 pointed out in my claims, and illustrated in the accompanying drawing, in which:

Figure 1 is a perspective view of my improved repair element.

Figure 2 is a bottom view of the same.

0 Figure 3 is a side elevation, illustrating the landside edge of the repair 'element and the manner in which the said repair element is applied to the worn nose of a plow share. This figure also illustrates th manner in which the 45 sharpened end of the repair element is'main tained by hardened inserts.

Figure 4 is a front view ofmy improved repair element showing the manner in which it is applied to a plow share and the manner in. which 50 the repair element for the cutting edge of the plow share is applied.

Figure 5 is a bottom view of a slightly modi= fled form in whichthe bottom insert of the re= pair element is extended rearwardly along the 55 intersecting edges of the bottom portion of the element and the land-side face-to prevent wearing away of the intersecting edges. V

Figure 6 is a rear elevation of my improved repointing element.

My improved device comprises a body mem- 5v her It, having a bottom portion ll and a front cutting edge I! and a land-side portion l3. The back end of the bottom portion, Ii and the land' portion I! are cut away to form a recess ,as' illustrated in Figures 1, 2 and 5, said recess be- 10 ing shaped to fit the upper face of the nose portion I! of the plow share it, as illustrated in Figure 3. The back end of the body member l0 terminates in an inclined flange l I, having'an opening 30, said flange being adapted to overlap the upper surface of the nose i5.

The repair element ill is applied by placing the flange i1 above-the nose portion is with the landside l8 aligned with'the landside face of the nose l5, as illustrated in Figure 4.- Softwelding steel is then-applied to the edges of the opening and the top surface of the share it for temporarily holding the repair-element-in position for final adjustment.- The repair ele- 'ment may then be further adjusted to increase or decrease its suck by tapping the beveled end of the element with a hammer to elevate or curve, 20, into which is fitted the forward end of the renewable cutting edge II for the share IS, the inner edgeof the forward end of; the cutting edge 2| being welded into the curved portion 20, the said cutting member 2| also being welded adjacent to the cutting edge of the member 16 after the-said-edge has been properly shaped and formed. By welding the forward end of themember 2| to-the body member l ll it will be seen that said -member II will greatly strengthen the anchorage of the'member Hi to the nose portion 16, in sucha manner that a comparatively small amount of'welding between the member Ml and the nose portion 03 needs to be provided, inasmuch as the member it serves as a lever to supportthe member it against a certain amount of rocking movement that tends to take place as the point is forced y through the ground and is engaged by stones and share by welding.

' stance in the soil.

Usually all the welding required is along the landside edge I and along the lower edge of the nose portion i5, along the dotted line 22, as illustrated in Figure 4. The back edge of the member l'l usually does not require welding. This enables the repair man to easily remove the member l0, whenevendesired, by simply placing a cold chisel between the back edge of the member t! and the top surface of the nose portion I5, and then driving the chisel in place to separate the repair member from the worn nose i5, after which a new repair element may be substituted.-

To increase the life of the repair element and at the same time maintain the true beveled edge of the cutting end of the member I0, I have provided, in the bottom member 1 I, a transversely arranged groove 23' substantially parallel with the cutting edge i2, anda second transversely ar-' ranged groove 24 in the top surface of the'forward end of the member ll and somewhat rearwardly of the lower groove 28. 7 Both of these grooves are filled with an alloy of very hard metal. It is a great deal harder than the metal from which the body member II is formed. Thus inlays 25 and 25 are formed. The outer surfaces of the inlays are even with the outermost surfaces of the body. portion in which the grooves are mounted. v

After the edge l2 has become slightly worn, then a new edge 21 will be formed joining the front edges of the inlays 25 and 20, as illustrated in Figure 3. The inlay 25 will tend to preventthe sharpened edge from becoming rounded, while the inlay 26 will tend to prevent the upper surface of the nose i5 from becoming too thin so that it would break or bend in case the cutting edge would. engage a rock or other hard sub- In Figure 5 1 have illustrated a slightly modified form of inlay as provided in the bottom surface of-the body. The corner at 'theintersection of the bottom and landside surfaces has a rearwardl'y' extending groove 2l'in which an alloy inlay 29 is mounted. This inlay 2! extends upwardly into the landside surface l3, as'well' as'i'n the 'bottom surface II, and thns'tends to prevent wearing away of the corner of the bodymember lll.-

Thus it willbe seen that I have provided a renewable repair element for plow shares of simpie and cheap construction, which may be easily and quickly applied without expensive preliminary. operations to flt the plow share for the repair element, the flange n being designed to rest on top of the worn nose portion l5, while the forward end of the body member '0 rests substantially across the forward end of the nose. In this manner the repair element is greatly reenforced by the nose portion II which is formed integrally with the plow share. By forming the inserts in the cutting or forward end of the repair elements I have provided means whereby a comparatively small amount of alloy may be employed which will at the same time be more effective and stronger than would be the case if the entire pointed end were formed of this hard mate- I claim as my invention:

1. A renewable repair element for plow shares, comprising a body having bottom and landside portions, the back end of the bottom and landside portions being cutaway to form a'recess for receiving the worn noseof a plow share, the upper surface of said body being beveled .downwardly and forwardly and downwardly and laterally from the landside edge, the upper and lower surfaces of the forward end of said body having transversely arranged inserts formed of com paratively hard material, the upper insert being supported rearwardly of the lower insert.

2- A renewable repair element for plow shares, 1 comprising a body having its uppersurface beveled forwardly and laterally, the back end of the bottom and landside portions being cut away to form a recess for receiving the nose portion of a plow share, and a comparatively thin and inclined 15 flange portion adapted to overlap that portion of the plow share adjacent to its nose, the bottom and top surface of the forward end of said body being provided with transversely arranged inlays of a comparatively hard material, the upper inlay being supported rearwardly of the bottom nay.

3. .A renewable repair element for plow shares. comprising a body having a landside surface, the back end of its under approximately fit the upper and forward surface of the nose of a worn plow share,the forward endof said body being beveled to form a sharp edge, the upper and under surfaces of said body ace beingrecessed to 25 having inlays of a comparatively hard material 30 being provided with a hardened and transversely arranged insert, the-upper insert being mounted rearw'ardly of the lower insert whereby the forward end of said body will be maintained in a sharpened condition as it is used.

5. A renewable repair element for plow shares, comprising a body, having its upper surface beveled forwardly and laterally, the back end ofthe bottom and landside portions being cut away to form a recess for receiving the nose portion of a plow share, and a comparatively thin and inclined flange portion adapted to overlap that portion of the plow share adjacent to i'tsnose, said flange being provided with an opening to permit the flange to be yieldably and temporarily adjustably welded to the upper surface of said nose portion.

6. A renewable repair element for plow shares, comprising a body having a comparatively thin and inclined flange portionadapted to overlap that portion of a plow share adjacent to its nose,

permit the flange to be yieldably and temporarily adjustably welded to the upper surface of said nose portion, and a renewable cutting edge having its inner end welded to the inner edge of said body member.

. 8.. A renewable repair element for plowshares,

comprising a body having bottom and lsndside portions, the back end of the bottom and landside portions being cut away to form a. recess for receiving the worn nose of a plow share, the upper surface or said body being beveled downwardly and forwardly and downwardly and laterally from the landsidet edge, the upper and lower sur- Iaces oi the forward end of said body having transversely arranged inserts formed of comparatively hard material, the upper insert being supported rearwardly oi the lower insert, and a renewable cutting edge having its inner end welded 5 to the inner edge of said body member.

LEE 0. WIESE. 

